{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1088310",
    "entityType": "User",
    "nonce": "0x4b0ff1b09f174a93bcd25958de74cdffca49c5e057aeb5fee34a51058263162f",
    "signature": "0x7a911f005436d7c10641a40724153c2ef8e074b6ee19388a3c7d181d8f339b58067b983ba5535fe4363e46d177fac0fdc2c7aa7e68dfb272d431f0aa2dd08af41b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}