{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "957873025",
    "entityType": "User",
    "nonce": "0x4e71f6bff40a4b454089b56c3809da0438cfe62e578405aceff12fe0437bbce1",
    "signature": "0xfe8842159e5767dee0ced6d82d413ca67fca41102d4bcdcd2e5c2c764f24cc695c3980ba07236ee607c3ed4d41c0f33d6ca44fd944b4a6d2a01768a29d9949381b",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}