{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "333880",
    "entityType": "User",
    "nonce": "0x4cdca8355624905481cd418b8ecd155942cd87d955ce82f2978b05c4e1ce4e55",
    "signature": "0xe51353b94d6d8a82701cadcb4b63b1bec64baf4c80eedc8f9e570cf6f9c5cbd2042696880d3f77efe0b11402994152bfb2227765a0cd3f535413d59407fd36611c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}