{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5be911f8859a91775c6c5ca3cd2915ed2c2449ae7fd411c52a7ca9f196578176",
    "signature": "0xe2c80df23461beedc23f4aa9a355db5b369cce915649d7bebc75dc522d77c8837636482ca68f73a5ea76cd37b75dccbb96cc4ed4f2620904bcd59072659b233f1b",
    "signer": "0xc79866236528A06007B5061AbD61c6501bBa1e03",
    "userId": "847289042"
  }
}