{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0xcd57b7e22ce63ab60af0154bc96f7df02a2c12a147db43944b6e5de2ab46e883",
    "signature": "0x74622e888245248e4f175e2e228069cb80cc39c59c8c13fa7749c64426b465c32dc48409c5c04da380dc2470702ca7e09884a6fd4a8032808ec03d945e5d82ad1c",
    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
    "userId": "35251"
  }
}