{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "531665074",
    "entityType": "User",
    "nonce": "0xd5216f56ac4df40742beb77c077845125901ece812f8cd3483e6f57ecc7113dd",
    "signature": "0x216ab8550294b1d7f6e6b887a3a2222b9410b108653d2ea9caf40a874bfde3d57d565e8199beb66ce402cb8f7bd5172e68b58cf5f4525df955e496697952a8101c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}