{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "629284965",
    "entityType": "User",
    "nonce": "0xad458d893f61add00f07ffcd27b33ba7fed8c2af90658a5f4cf60cb86b2f914c",
    "signature": "0x2cb816de2c289912561532aab0ad3cfe52858b22b9f21a958dcf41b88ea19a1c050da1ed6cbd7cb8f6b9aefb9491c298e96f5f0bd0ef3f9a7d2be6c557a519c41c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}