{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152351",
    "entityType": "User",
    "nonce": "0x17a48051b999917c97954b43e957b46212f5f993fac3259879f39d00ce515fac",
    "signature": "0x0d3284929b1952adace17482863786d1b1acfc347488b1bb1d051504f756599301279f0090397b80d2c0c14b25e17cb93625ef7124e43b4cb9329341f02bacbf1b",
    "signer": "0x9c1a2996a6DCe12e947BD7C8A755b6150A3eD5f4",
    "userId": "474113241"
  }
}