{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "509846",
    "entityType": "User",
    "nonce": "0x93e03bbcdae4730974abfd680df6f29239c026aca16834f367578b44767c20ed",
    "signature": "0x7572c52c57389db536ca9ad2fdf9413b73f78829109eaab3cba02ff86cfa4b0d400c05841a8045a5567f496c8b7582362d9cedc6e3b405f38ce720e898c697691c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}