{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1894270",
    "entityType": "User",
    "nonce": "0x80089d99315b3365cf293a86af85917c7255ecb441eae5c96d5a805c9905d251",
    "signature": "0x08f368083204d6fe1f06a2c58a4e6c269d322712bf03a5edae67a2109a3be1ff7188f81752f6fb1fff9aa8d57d3c65c1d3d1941a4347e08f479357ddbf91d93e1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}