{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111374",
    "entityType": "User",
    "nonce": "0x42656c03f24c5a4170b35b67c4b70dea398407ce17e2ae3bd0e0aafe686bd64f",
    "signature": "0xf55a7b897c518fda09e286664da37fab12ff058e8df2a046c6d8ea245fda150007656d81ccebc66e5751992a36f3207f9a4c21f2818b5d0262b28a2119f8852f1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}