{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "855755014",
    "entityType": "User",
    "nonce": "0x551e5c205300ec8d7d06a7385e44b8baf9b48c62fadcfb169e6d91844da8e22a",
    "signature": "0x0a7e9bcd052879711170cabc863914caf117c7bb93272d2edf54f9b71d1c6fde7ecbaeb9ca313c53ff8a2223838f159002165551008dbb744b9e062320a1192c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}