{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0xced925b807de45b21e87a7627ed5186a67799dba16aca3a7559b084ea6513534",
    "signature": "0xcc346b0eec28102f2237363f40b795916722a8a4d9cc705f19ac03bb85edbf437cddd479715d1883b12f1faad31567ef88cb2ffc4693f04d7c39cd5ffd07a54b1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}