{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "110190",
    "entityType": "User",
    "nonce": "0x61ec86b1f92e8565a08ffb599dca85a8ad407783bc0a56d9a56849e63214ba86",
    "signature": "0xa980676d3524d8cf2ddc3352672bb105ab4d7d197a9c6956cbc290b71c2d3c8c57e60d673066b30ca7828f4ea2f53a89d557984260c4364d2f7acdcc3677fa371b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}