{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xbcc7f1d5890352c7292296396bb30597a40f1176ed2d959f1b5e3630c5062635",
    "signature": "0xf635b565c82ad01dd8a9c957c3c74ea2ef3c995686245f1a94b10890bb5e628b701db6507aaf7330ea4585b3a2cf424c219c303cb9b9d9c4e023d7e92e1aee0c1c",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}