{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x12f181397344af23c382c3389c99a8382c26ef6346bee8dafdac77aab4f3f36b",
    "signature": "0xc7e637e6d24ff3875a8132a7bba552a30c785611110e2ddfad7e8a1c89784d500cf8016ba5bbcbd3406341933f4f5f90caa8d2429e9457e51b0e6eff21fa07661b",
    "signer": "0x08EA158C5DBfC5D9bC76CeeB79Cc59807c3AB8Ac",
    "userId": "538698776"
  }
}