{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x00bf79b6c658a6e9b6cfef15835e404d7065570f9955fe9b15887d7f5843aa2e",
    "signature": "0x4ac2c13637e12c5131ffd47b6a85bb5fb71400d3f8ca487af399a3ef3e85d124299c6e63d59367c09cecbd1618669cdbec99ac3a48237bdddc9052d18f2455d71c",
    "signer": "0x4Aa8154A33F33394BA8De574d71aC98Ba6A47D5a",
    "userId": "645720561"
  }
}