{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "376468",
    "entityType": "User",
    "nonce": "0x185a1fbd79e386f35390d57fc3743d218ae4de115b1571df7edcbb9f536caaaf",
    "signature": "0x6d52739f616052ef1cd99988148c544d14c61415a59471fbc3ca1d65fbb6b4467a7a3130966a6f693659a00672f51f493258e1b000ff9b5b62e46604d136b7e31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}