{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9436a4a942d7ad819a28d7279f97360d4b3f2b26295e25161ff67ca32275209e",
    "signature": "0x1fcc80568baecdb41b2adb2d5674ae85480939f2ed845ad2645d92b6ded6f6a84455bc8d78f2f9d5c78d50f71ef86f27bed60b1e344d8efef3a3bc3ff757f7211c",
    "signer": "0x70301c1c3af1CA3030C1e9eA4A17366CE9D15676",
    "userId": "649149786"
  }
}