{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "277314120",
    "entityType": "User",
    "nonce": "0x5e6ad1ab43d2586c204d7fe6a8aa7790e87268e4a85505d9953c70a3b6b3f912",
    "signature": "0xb4ef1a3b7706ee4c3cd57784465c13c34fc6b3bd0207157326c12ab5228f63287282e3c35b2de0b6204a3b16962e0b68f81346162b24a16a3e0d5080e30da6881b",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}