{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb78b1f510cd2549084f358ea7169c5def0dc82627496f037b8f4ce021ba4543a",
    "signature": "0xcf69fb21b5eb8d4042cae52fcdfeed17c7c6d1b40160fb4b93e493e785f626522870378ec1f01fa60dd607e515991d6a615f8855e3c69227dde2abe32664c0a11c",
    "signer": "0xaD18d47Fa572f5b5Ad74227EAA7B239318402Ce8",
    "userId": "176359011"
  }
}