{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "80151",
    "entityType": "User",
    "nonce": "0x5f909ad31c5f9b319c6dfcf95f4b7d00f0c89c89d37ad2e70b29aba59d82d209",
    "signature": "0x30bf543a18fc5e808b39e84ae62e2f5c92ddee616d9b8c94505f9a228ed7250220607a799a577ee007f7a8ed7b6f464c51320e6414e13487134620aa39523b651c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}