{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "809803",
    "entityType": "User",
    "nonce": "0x63cd6ae1e6ed40e0a7e8a01af7ff0b714a3d7cdad05c58e081731f4f44364d46",
    "signature": "0xc9066062b410be9a366d717423d1830fa01e4a25e064be44d5a4aba10656e7303e1ec5bba2798d058b9460ebcbfd2dcfd5be25107d127b10e07005ba2ca6a2fb1b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}