{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "875378857",
    "entityType": "User",
    "nonce": "0x24cb8e140e1a6deb43735523f78052b4e614868be39bb5f5d277707ffa74bbc7",
    "signature": "0xd47aa08dfd5db2839ba6f42a3abd3407421c6a304f91e91672aaef92685d6ee65c4eb1f4e2eecff809fca0f423d4725f89865e7b5d654bcae86e686d3d37b97c1c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}