{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0d9727c09e658d3a381c4ab9113e7f185bed60ed2aac63fc250cdb9bd9c10117",
    "signature": "0x4f80cd1401b7b37a0a76468ade8b1d7c00527682273ae9dd669708052ce20e647e8416daead0fb51d1b73a9b6f4bf6c78cc8ca66a3c2eab4209d0329a7c8622d1b",
    "signer": "0xA9e17E71291e2694145cd86F1a6109099Ec21600",
    "userId": "455005658"
  }
}