{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1706558",
    "entityType": "User",
    "nonce": "0x9dac0231466394fd4e14a550ac922a87ee293350da70836263016e73131f9dcb",
    "signature": "0xab48b67eabe5748f77a8510e35134417a792c5b6096db1e3c02364281bd1790b2c50296cd1baada4ba54cd611bdcb06cfec00c6076b6ad369d14548dd20e44cc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}