{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "131121",
    "entityType": "User",
    "nonce": "0x683c138e43633033c6eb28611d9585c39c72bb1b1fc96451b21159b31ae7838f",
    "signature": "0xeb93a63b4430ed3a166e3a65200efde4fdf47fb7399176810090a38d2a86610803046556d35d945fc8172490bff5e60344f7c225b8ee3826793d5910ca91e60d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}