{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "256401602",
    "entityType": "User",
    "nonce": "0x475dbc51a31e8914fd55f6e3d6664d29c92b1e741dec844c030386e9bbba0f61",
    "signature": "0xb7248d1e5523ee4c24895fff392213219e3268b3b857b4fa6f584ac41a194713408242c7267727b641087fdc9940809a22a99cd6482c6da8cbfd39d6a026866c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}