{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x90d65e97b766600e21692b2b4828ab1556dde29edc3c78eb53fd035d7f9227fa",
    "signature": "0x3bd350a62695cf2e7631dddb9ca4e63b41406da3b6392f63004bdb48a7645d2b0ba4fe2d306a4aa1944eabc9a08051cecfa20d44f749ea249608669c889f99cb1c",
    "signer": "0x1b97a368c680A6B982f96df28AF90b862ED2Df49",
    "userId": "626857797"
  }
}