{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x999814b13eaa69e0fd120a62cacef0099dfa2ca4a1467c553c5119de039ab415",
    "signature": "0xe781f1e69c9e6aa209d9ff2a517bbe6a488e5cbd20d4c434ff7cdff71157ed320a369b33654b19fa708d8cc447ee1d85861dd228a0e811b98574a96e2641470b1b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}