{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153722",
    "entityType": "User",
    "nonce": "0x630c2532be4641cc4fdff6643b776a51dd2a2c71aa3afa8c05f3e8f32891b11f",
    "signature": "0xcd021edd27deea31026d64ff87d9f12289d46d28b6cd4ab1dedbc866a464fa4d6ac71c8bb2a709fc28dbce265ba15d697ffd2da2a85e88ba23002f456acd09ba1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}