{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "889180014",
    "entityType": "User",
    "nonce": "0xed7f4128fe6186fa2a4ea2f0dd53de66870f301096d1d4ac6dc9f035e281c580",
    "signature": "0x7ce4d680d3f7542ffe2dadefa5933a2bfbc10fdfee7c89807c02e1166b86f25a7a7376bcb17f92766a2c29e0f3fba7065f03ec58a2404a1b38d3a8b7f278c3461c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}