{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37362455",
    "entityType": "User",
    "nonce": "0x3d3a1ed1b43b642071db62d965e68585859c4c425827b870c3bba54d0776001c",
    "signature": "0x537335395ecb6449d3acc6c3a7fbe6b7b75efa4bbdd652c16b713dfb8361c61828812f2b9f53d7e5aa2d7f2017c4f8c9caa678f5be1e13231b697f2901eb44b11c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}