{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54988",
    "entityType": "User",
    "nonce": "0xcf8b63e089ac4ee8b1c5e0078619d0e1bf5fd46882c88e8605df65b159b8a810",
    "signature": "0x6887aa1679df14878a8a16b0242fbe60bda445aeeb8c8fc6055168d1ca6360d81f6b5ca972245f634dcfaf6845a839033c85e19b813c85749afff638ec3634021b",
    "signer": "0x3CE226b3CA677B312E9396cc48d4008c70545091",
    "userId": "550328673"
  }
}