{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1887966",
    "entityType": "User",
    "nonce": "0x3291d35fc58a5234ce48050536d6a4c1e954cccdea24b0e0a54b13ad4af40eb3",
    "signature": "0x66b9940e98fc5969bda600e58bc44b2c7285e5130796d0e5420abb74fdb3abfe3027c708f6c6c64c5ad6c80f1795836cf718e9adc0ab7863ffa7510af7eb1ab61b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}