{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xc17a58efa4cabe4e8f60b707a2c596626383675e8b89d1ddd58d756803196e63",
    "signature": "0x7cc5b68a1308fbd68dc2f74ea9fb821a5abfd631338ff4ce6fe77dfeab27e4445b504fce87d2f3380da6fc614cce6dbdbe6a575cb273c3fcb9cd488728debd691b",
    "signer": "0x69390eE85A40368f1dB502Dde4b1fc36a1850A33",
    "userId": "27130590"
  }
}