{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9b8b514883da33291ef2651722cb52e577b4e6c7caade026c1537a40d1bc1de2",
    "signature": "0x222f737280216a09bc26abffac3e7e0b0827cd86caa1dca58d0ee714dec0c6f44d1a3771ab1ae1272b52a52c2d3db01631988f0af18ac2a63421ee5e613bcd9b1b",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
    "userId": "876735576"
  }
}