{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "548409021",
    "entityType": "User",
    "nonce": "0xf4c261a73b9c23f096623e622fa192990fac667c358fcb78153f5eeeee7eaa34",
    "signature": "0x97c245cfb865bd2909059551994f2925f7cf961c03925546036e9a44531aaab8177b45a1b5b93a7919f2556c2c65bfeeab322bb291ef8e0e5f171e7377dae8441b",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}