{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67187",
    "entityType": "User",
    "nonce": "0xfc0941b1974866dfd49509e43865d9ca9010c2de00ebd266def8bc96565aa071",
    "signature": "0xf81814ac62214e00c282e0de600e8462b10ef0b916d237145102e354c29503491f6fb62b5c32dfe3d5dd25046b68963bdd598235163a061cddf0759f1b37ff581c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}