{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77111",
    "entityType": "User",
    "nonce": "0x8c34f7cde4c0eccca9a1933e31857998e37a15904150c433d92ea3ab60263ca0",
    "signature": "0xb75140ee15b0ebdb4ebfdd451d51303d00a37512caa4739888add023a54b2aff6f9748680f6f091e95118863533d26855ae9d49cdd9a02fc3b11dccd512867fc1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}