{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "850416615",
    "entityType": "User",
    "nonce": "0x305d12b01065fec900d2fbdaa6eef58419e5029d77c2c575fc09a6a44e5f1c2c",
    "signature": "0xa723b0ddef167d240f56cdee8175657c6b127a6391e6905c3a6df9da1e706f9e53ab92c6dac51da154a337f004f8ab7bf6d9e43e913b6ff035f41fee9a1e50221b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}