{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "965042984",
    "entityType": "User",
    "nonce": "0xc2f8d463b1785cefe943493eff043ed9aa06cc588b9becde7ef3d533467dbb54",
    "signature": "0x45c8bc234d537e777052ff51c8da06ed4993ecda1b5f4edeaaa27c57382e546c25db90e3f645bdafcf6a742bb5923be1e6263d74c7ad2b280f6dc3e3246e615c1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}