{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "314246",
    "entityType": "User",
    "nonce": "0xfc29169fb892e1be9443f715636a2a52e0583b78f08e8cb1002cd9855c797bb3",
    "signature": "0x947f0e18e3d884c1c25557e4616b54f7a88349657d88f80bd6cc82b06416cd8b652a1043810cdb37a01c9eeb8d6c75bdf0ce6b5a68a94761ee46d7e0509c8b231b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}