{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "884320631",
    "entityType": "User",
    "nonce": "0x8f9eb64c9dc0c59111a1517107c476a6c781d08eaacff1570b45799c3fab9e99",
    "signature": "0xf70ce080493333620c750069ac437d1c95a3aeff2badcc37cc7c5fabf477d5f748cc6f3ab3a491e316f572e019e1979469ec206a36e63e8a3e0a64e3ee28898e1c",
    "signer": "0x25e1dfee0D681BE7Cc3edbBa57650eeadD7B075F",
    "userId": "486382568"
  }
}