{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151",
    "entityType": "User",
    "nonce": "0x5e8116f9be13bf7fda03a803ea6eaf5071252e49a2ec95905efc9de1ed58b591",
    "signature": "0xe9149cb296f175e318e44e786eb6ad151106435b10313c10557048078351fe2d6012ff9cad09a87698409fe323f99f5143187846058a0e00d612cec805a1c7f81b",
    "signer": "0xF1CE68Bb55af8179258987F2f915291419370CFd",
    "userId": "216389377"
  }
}