{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "495699923",
    "entityType": "User",
    "nonce": "0x53dc1ce57cf8b441f830ec8c98cb4dafc69875f48888f525ef072132ea4aa695",
    "signature": "0x4796cb7a45b0be5568cc4529b4d19a0468c07539c857846add8a70f16ab660a517a76a933a078dcae574825884d5ff0b8cff699cafe5437b78cd161bb8b137841b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}