{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51154",
    "entityType": "User",
    "nonce": "0x180dc7e5a674d95b28bdb9d33345d31ceee228ec518bf42d2689e9a715f39508",
    "signature": "0x4569ef33dc3ca16f7350e6b160e2932e0ab676272c7d77c452d18565c10b0c5a01583360ef33ac7ad4be9f90ba87727da4cad81791277b3cf521c019ae831f711b",
    "signer": "0xC59f7055B078B1Ee57c271E19BE5Dd7033FD64f5",
    "userId": "950751701"
  }
}