{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0xcc2f23a44226b5548356094dcbbd690b0feeb01e54bf24b0e10026e7f0e98301",
    "signature": "0x79770e528059788bce5e000fec62533cffb0792473a09c8446254bfec3b975db5962b6bc5c72fd22178d87ae475a9ff679d0fb03a1a1a3795fe0db095f241a961c",
    "signer": "0xf15FD63403ea1176eaa213fd9354417c325a643b",
    "userId": "813142179"
  }
}