{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "350621",
    "entityType": "User",
    "nonce": "0x79ffd89cac2f5a86f853eb40bc47a3b2fd56170d4d6bcc97b804b287f9e608dd",
    "signature": "0xf4fbc634cad836ba930d570f3e4dc9c03d8d4b34a80780ffa0a78ac2bb0a4f7f29abfaf837a05f34517b596899b61ef7201ee3908756c302c02f704b4269174d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}