{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "415165487",
    "entityType": "User",
    "nonce": "0xc4194b73b3342174cd9d5f7227c6fa6ecee30e8876b7c2c2af61c03781956dac",
    "signature": "0x97438f70b73bf7abf1007c7c9fe6ebe84baac66c9c4ce3c232b9d8c5188ae45652a58e13c028d8e5caa56ebdd5b02256aa3d3e3032a440aa7b0780f1573890ca1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}