{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882689",
    "entityType": "User",
    "nonce": "0x9890f397075f602e047378871c1afd9c1e21957eeac0021c2a24154a52630b3d",
    "signature": "0x6c87a866a4cb867ff1bce4e0135f784ebbd9100bf6336ef993bd1809854c329b408c116daa7945068d242b177d9c72b9e1294df9df8f428e11729db9da7b67071b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}