{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "884664383",
    "entityType": "User",
    "nonce": "0x4f45d2ebc1abe0c35d646a0ace0a1f67354bda3a4c09f1e3bbe7585d5c7c1024",
    "signature": "0xa278e9286d7b2abc5eafc76312e0f611a2b5aa371fac62d2052421badae6eb0025c1bde2f422457a6f9c6ae56a24e541c0414d417aa2d2c785103e7e8777b5ba1c",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}