{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "893863695",
    "entityType": "User",
    "nonce": "0x8f60e32dce05bc75879902e3033a7f3c8b67b3fe0cb8fb9534c3eaa05eb55203",
    "signature": "0x56a3cade6b8048a82d94161196f6a9441cb5aef6bf5f826a47618017fe9a85717d433b9d8afa00023a3a0fcb707a8689415d15985b01c2deeca46bdc2d74aa051c",
    "signer": "0x21370B7a703524cC2941323C2c960224021F8D56",
    "userId": "986168993"
  }
}