{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x75857569ea00e0d392159901937a37f6c4cab847d76e82d3e645a8fefd5cca77",
    "signature": "0xf588eaaf5a19fa7b5871f6b83829fbe33d2a76e96defbf9a937bf0ab481f8f8e2625c985085831b95a171597b89197af8c5a5551a75a5af61d7a3af0dbffabd01c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}