{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35918963",
    "entityType": "User",
    "nonce": "0xdf54145e9ce74a78222e51ec00e9aff66066286b2f94ce8c692392ceabfbd2c2",
    "signature": "0xa643fc3e0494537027001bce68e7a4736fa80f8ed6f8b97537daeba8a08bce8c469d4f39e654a9e7eb958d8f0014622829d9da3b4d112ce5a5d3f07e4a9974e51b",
    "signer": "0x5FB1dF0c125C1F3cdda251a598Cb878a0A390F18",
    "userId": "25189733"
  }
}