{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2e7a30b800ecb9b54ab5a238bc99802719376525ce8a56ee87ad0837e90ce3a6",
    "signature": "0x3ea9694998c3db8a5dbb435e27c7feedc345990c48e3015e32134157644124da56c13db47c7ffcfbe343e5e8872e69302fe72e11685dd885bc8a929a5b5253941b",
    "signer": "0x80F600fdBf6F40e78069849Be1C2b4f379F76adD",
    "userId": "118123141"
  }
}