{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1683",
    "entityType": "User",
    "nonce": "0x7bb6e7641978aadb95522c9bc30f61c5f9932df18c853cc2d6f0612378453a0b",
    "signature": "0x5ef31287ec945ea33075fb431da8841dae8484ba49ccee6fd87594fc5f8037371143d61cca0f4f992a9263a7cdf64cfdf7f5dc92dbf8d29f2114d26026767fd81c",
    "signer": "0x8b77d47DA28d313A2824468913d2f44F9a5B7b75",
    "userId": "808833626"
  }
}