{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "771602835",
    "entityType": "User",
    "nonce": "0x52b97e6f3457164431fad03ef051aba15884509465df063dfc09975bc324473a",
    "signature": "0xb969a4db257abdf99269f571f7f130bee4ee0d7785e3c387bc1db4bdddd644d460ae5bb7786d13a4b5cf0be7489ebccea00b76f3c2327a4ba6b9dd2293de09971b",
    "signer": "0x25e1dfee0D681BE7Cc3edbBa57650eeadD7B075F",
    "userId": "486382568"
  }
}