{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe70d838a7c1a66220af0c87adbc21023c115fcf62d0541307d397e4cccfec6b5",
    "signature": "0x4fb868d22ae6fe03bb3f7bcca44f0b06ffa3cb120776b70140bf47d9b62656da3a65554040f0458ffa9a4c0310a8ddda485bbceb1420eac6d0302e665d73a1631c",
    "signer": "0xbA5231da41B64fC270444f50999A73f927f23256",
    "userId": "28116771"
  }
}