{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882021",
    "entityType": "User",
    "nonce": "0x0162dd6c1fe37e219a1231c1e6d974510ed23c8208f570d83e6ef6a313a66693",
    "signature": "0xbfd055160a65ebff87f3436d41230e31068e780ff6da766c8ec07b06c14c1df94ca14e028d80ecc9d8953e97425fe5602f421a4dc8c18291cc79b464ef356e681b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}