{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584616263",
    "entityType": "User",
    "nonce": "0x8e199c9cd719ac8961e21519ebc118be5cc0a2f67042495b04c4e49b521af613",
    "signature": "0x8e88f4077bd1ed1481be4b74cac3a3d879b9503a467c28a1c3ddb4db042a05b67a5d32e12aeb607c63c01100946b950329c872effc66df951ce57fc3a24967aa1c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}