{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "571586821",
    "entityType": "User",
    "nonce": "0xd493a8bcf965855ecfa7df519f2c29ab3721c5fc8e83f544aa3956fe2ef8f093",
    "signature": "0xc4a3c087929c4be0f34828269513cc7e459a2f81350e868ba3cae2d49da47d561f2e3de268ecbc9230bc0e6dfad64724286dbe7d886387599ba4485100e7e2961b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}