{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201563",
    "entityType": "User",
    "nonce": "0xda28f110f2818f8cc6ad0a1731bff82b63a96a4e8d99edfbde37a0a581338dc6",
    "signature": "0x67342c53dc6a946b6711d8e5265996ae05922d3a96475e5dee27b5167bfa56a90bdf4f343596499de7e20f2f6d08039a83688689ec85a12489ff36f5f8405ed61c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}