{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "402783",
    "entityType": "User",
    "nonce": "0x6a3b655d094a8e0f06d7d3274dfcb492589f12bfe28086b174b953a3430f89ee",
    "signature": "0xc1f907084c78603d925e17e2300bd43f7611f54f7e693ee61e24c811d22210941fc444bc535dfb8c6222a317ae5cac906da6c804559690915a64250977e106ea1b",
    "signer": "0x63762Ba099c2247aD3755af8aCb1d62705f0D5CC",
    "userId": "851444561"
  }
}