{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "709633854",
    "entityType": "User",
    "nonce": "0x2ff73bee7915ea13b17d8b363fcfe5228afd604b8d7bb8bcdc76b8ee0dffbf62",
    "signature": "0x01eb8d604684813700064d5c4e9fa3fcf7bc77c1d22fbc2b538087970591d17068a7302522011b358949f34a6a8b24fba0c5a4368b5a1491f5c6531dd9d5d8d51c",
    "signer": "0xC0eEcD5Ab99B0f0BCcD79Cf620CA23C758E8a338",
    "userId": "136979704"
  }
}