{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x7dab6fedd6434b85391d31572f3d7c7d35fca64bba854876633df660cb3e3263",
    "signature": "0x06261267eb8c79b7625a3df347298bcc54e534d65414b530fb598e3d425af73524aabad003f2b04d5d19ad6000a1bd5806a0602041be7dabf43b9612ac8fd4061b",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}