{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306820",
    "entityType": "User",
    "nonce": "0x1ab620994fb62f358bde5e0019068c38c47083890e1cec3acf6325d1aa3ee598",
    "signature": "0x84a56be32b359fc6df4d523d9deb5534140e3f8821fb8d1b8dd9776b463e0b282f8ded5d5d416b92a73aba05fcac55795425a690657aa8d1209317467ec20fda1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}