{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489165782",
    "entityType": "User",
    "nonce": "0x9fcecb01a6226d32afc7be40438bf208757125f96161754204ef5d3d0eabb364",
    "signature": "0xf154eae9d7cf4c90b477e26a31c9f946c17194a89c29bee9921baec9470f209233a252b57240df50ba58b43d2fd86df0b030c2b1940deddf943691590d798e331b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}