{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1687304",
    "entityType": "User",
    "nonce": "0x51af60ca8d9449ea27b0aadd810b8b2f1bf7b2191399b7fc751c04b4d789f377",
    "signature": "0x6bb8891b5593234f7814470ec23a6b8ece57f5718d78f7092246152fcb4a0ed84fa3eba3d39d7ba42347fc1b27c30c06db19451c3484379a956e884b099481a01c",
    "signer": "0x7E83B25b16B783fcd72F59CE3004CB54a30e53dE",
    "userId": "611206472"
  }
}