{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x2c5aa348f8fd65ef47fe0145ca6bd40bad7ba204eb8399ec2a744ffd83146076",
    "signature": "0x8222b01c3e97c202c2cce1f17276d21a76b458d4c4f12d0acefb473ddd5497dc75bed6ebed2159b64d6db6db47a1fc57386c88a7b73d866e6bcb6a11621efeb31b",
    "signer": "0xD998291c151d687cE945559f5AD3fe91d77f23Fd",
    "userId": "247903729"
  }
}