{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1885050",
    "entityType": "User",
    "nonce": "0x5d3665ed0cf5db3f1d7f716db042f3a21288bd60d60d64b4f48d06cdb7e76f11",
    "signature": "0x6d1c6e3e1c2aed43c9c05544b3773cfb9bce474e24e83aed85e50e7032d2af622b2421a2cce7a458a3b87865d3b5b832b1a3b78ef80e995a75f0eb2d127dd4bd1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}