{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10373",
    "entityType": "User",
    "nonce": "0x728fbe6c95c6d8c8a9372cb60f78f5b8a3c7fd5ef2102a24dc5ea1727125542c",
    "signature": "0x7bb65391d385dddfe01855e2adddcf3b98517d8406c8cff039cdf7fdfde1c65c1b619624e2eb4549322bc02a39294fd12640d3734c6cc0fb57fe8ac6fdca867d1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}