{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979834188",
    "entityType": "User",
    "nonce": "0xd3bbecc45a807163313fa327e14dc0239aebaf5f23ec26bfc258371e0503fcd9",
    "signature": "0xec138b7f3b827dee7d506b7e32c6c254fcfb72483d78c5be04c0e5e5c0a2f4da5605cd397d2d72b674a709e78f5e3a0bb6718d3be6646bcfeaff0d693052f5d71b",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}