{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53770",
    "entityType": "User",
    "nonce": "0x3df10795c5944b5981a40e6da87abf8d24beb2a325dd4f14715f52aa6e7adf52",
    "signature": "0x182e1eb484a9e9e3bb9209a3baa8494d36e0b4950906f86a0529777702f12c2a5217d65fa34a9f6fd42dc213b2298ca0f885206c60df8f0a88656627b3d8a0901b",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}