{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd804a08a3cb8ee830d7c39d6d66492f59102bcb6b25959982c7c6ae229d6268c",
    "signature": "0x735343e1739907da602ab38c7d9198db788b3c13b49bd5f1f3cbc190aded0df85acf91b009dddf5a1e293030c5a4b1b762ff48e3cf21e87c73392e03539e56631c",
    "signer": "0xEeDa1fDEe61E4D60978d405302780107674Cecb0",
    "userId": "163834279"
  }
}