{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf74162bcdf643554727bfd01a3b8fd1820ac3653edfbc49f8488baf491cfc0e7",
    "signature": "0x8682bd91f1f6cf30e92cba8b1598475512b4d043dd5ed365c7425e4218b1418857b60fca4af33fe96330601e15a4248e72994be1a4764decea9dc0552014d1a41c",
    "signer": "0xa1C679620446d0a85D56a3845b32A6045fB5Bb84",
    "userId": "478180056"
  }
}