{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "115138",
    "entityType": "User",
    "nonce": "0x192d3557e65539b8a75987847d42124603ff0f4ecda1ef0cd929feb5ec6bf489",
    "signature": "0x3ebe277c09fc0c3892e45d14ab47d66d48ec7d2383bc6ab52506e8b0042e66d964d21c909d4e4ed6b42eaff9336a967c85a64cc56095c1c2904f60a099226c911b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}