{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1855813",
    "entityType": "User",
    "nonce": "0x51f952031486875cfc22dc4222cca42a3ff5db8efdb355482a0c661094328208",
    "signature": "0x38a243c4488a107137d0a541ddfacc89342412a4626ba203636f47f9202dd4fb2ee9ace70e5ac58338f66495845bc6fc0817d64f3227b3d80340d000e9f62e731c",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}