{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14042",
    "entityType": "User",
    "nonce": "0x1db6dbeeaa08596fa9bb246ff701d3e949bc9865d94bbe65d3f5860df847dde9",
    "signature": "0xb87d38f687628723ec709dea4c0e62452d664776836c8a49779411850a62bf786cff2f17cbbe860432bd32b0043ed4cc7e65109dc5355391ba2f3d3e1e4dc82b1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}