{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9403",
    "entityType": "User",
    "nonce": "0xe86eb5bf90dbed7a7ec7caeb765a136f48d49292c5b92d2abb78f45574d682d4",
    "signature": "0xa13e7c332b539dc9b7dfa354b3fd3453c7d857433d3b57e6f9db73aa76894d7b4bf47858beea78adeb22fd15abdeb322087e200edaed2c5749b83494dcfce7811c",
    "signer": "0x2e4EEc67e1D72Ead2c23e3aFd5e0a0110ed11E4d",
    "userId": "86534776"
  }
}