{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1655515",
    "entityType": "User",
    "nonce": "0xdcd30e1afbc3b12fdfae99d5826c7fef3a9f01252e22ecf3f9c08b02b568b9fd",
    "signature": "0xc9210fe78ad53c8742616d9b5d3a95b87f5c32b2ba61f108b5a233aee63727eb181d0d9cc2a5688ff49d62cf83e0ddae9e1c72f7f0e99001f1502d15e3c3aeb11c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}