{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13691",
    "entityType": "User",
    "nonce": "0x09d2b77dc3d4449405db3b016f598d049d796abaa2610876459ea0a56b56df64",
    "signature": "0xec0e6eedb78d4cdab64c136079df10f52d8e771538d6c9f960fbc208c46d46cd6792a036e693ad499af91ddd7845808392112571865bee0bce9b761cb0c1089c1b",
    "signer": "0xb87fFF581cC87c41f5760cBc657a96Fa1C7673E3",
    "userId": "648196771"
  }
}