{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x48618fa78854378d15fffb6277c5e2ef7afadd55b130781f27aac1a6d73e60de",
    "signature": "0xf6a12f792e6c55780e59625ee0c17fdd1a48db274e250f10b9d22de01986e3ba2c64a8ead2d29f7d286504a45fba75762c9f44024a0bdb66a4ce89b9a985a0791c",
    "signer": "0x6Ee7842A432b779E1Bf51F27B824fe86161cee6c",
    "userId": "408407824"
  }
}