{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "846471257",
    "entityType": "User",
    "nonce": "0x443eff7ad40a65f842e4ce98b4057f6dcfdbcefb93e35d2b48a00fed58c8d01b",
    "signature": "0xf675c42028ee0d29d082dd13a189b6141a2eeee8e83073570ded23f850301a20297a81abf98f05812988ec45fbdba64e7f2d244682e4cc455f48ef40856cb54e1c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}