{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "176138603",
    "entityType": "User",
    "nonce": "0x7e405bee942c868f4b9c37adaeace4ca457dc0fd0bd694909f6cde0efa4be841",
    "signature": "0x71e26dae4ea12bc8fdb52e0e507558903331b5f3b252678f12022bcff9f530fb7eb239d69177abea08d8e7c5e4d0bfe04360d2158ab26d0284c2a7172e08e5021c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}