{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xde73fdc040ff2649c9527103b3b2d293bb9887e02eb21ce17c521034a5e7beb9",
    "signature": "0x09aaf2943d747733dd0dd78785785c8922f67d922ecdc5a0f5ec444f0930067f5f7db48ee45374bf035e5191b127ff629d0935c2c0c2b6ecf7dc71d4edfd6ea41b",
    "signer": "0x982F30e13aCd411fdDB6e273FFeF1e1F38780a64",
    "userId": "993944575"
  }
}