{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xdbc3128215f119cb4f32c6b0f533533d18d023349ab4207dba6e3a79693a541f",
    "signature": "0x23c0cb7250d45ff7df2958281c12de26195eff5b5c201bd658eaaedbae877c586b3acc35cea584e5a69d04410cf0b01a81bd2969380490f09506fbb3412eb42e1c",
    "signer": "0xf399Ef3A18BD7C0De206619229371a9f28c8D86b",
    "userId": "900416093"
  }
}