{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1917560",
    "entityType": "User",
    "nonce": "0x2fb86c835d3aefff8ebf7ad6b231d94a78448ffccc2d74311d1644e047237bd8",
    "signature": "0xf950859d96610acc709e979afcb1fdc8ac91fe76de5e3afb6d24fd1263370e0d08c89356b1b806284d8f49e8c3a58d8affdcf7f7e518a0f05e8b63ebd92f940e1b",
    "signer": "0x138B6ac6EcE2bea5eAb147DBdDe9E1a09717a3b3",
    "userId": "736985209"
  }
}