{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xa021610645070c30df9b3f05580ebd55dc435f5efdfb5099b389866b06ec650f",
    "signature": "0x3f71d0c6e323370d9071bd2b944062efe834c3445e2dbd2c59bbccd0a853cbbd3f781d6a448309b590cd9bdc9b658dd37d372ff2e56c7ed4c55a66d52f96862a1c",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}