{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152806",
    "entityType": "User",
    "nonce": "0x9322f5196bece7865cd5d24c39a34c72a56c0be1a450fed0908d82e6bb4876a7",
    "signature": "0xa7895ff23d58be5c5599149d6d3d56447b8d26c6019200dfd94992eabc3adb344e26692ee250a068b46e5d8397a017d5cc164d7f2abb75f0e1298dda766815b51b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}