{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0xbd07202c4e75b29f516a15274ddac27b1eaef4d9e29f5e11ae25ef65431e5e24",
    "signature": "0x650717f751d253a043b264541be2e4b772ca0118678f5bfeb14e20aa8f4f4dca5b36f66130cc2c663711b07e7f417f23b594513d2383504a96787c780c109b971c",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}