{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906184213",
    "entityType": "User",
    "nonce": "0x90b05b65454101dcd3f6326c1208c11fc39bac0ccb3038899754854fb34351a7",
    "signature": "0xc71fca3a2f46addc75877d54afece31945d43bb336a8caf961bc0f6d6995243d1b182e349192f7866c0dff81cccb972e89e6576f38bc46ccdfcd084f9d588aaa1c",
    "signer": "0x385724dD7df996433e732c73201a749C6B37f65A",
    "userId": "260480467"
  }
}