{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "243887839",
    "entityType": "User",
    "nonce": "0x070683c13e92699b41bda25e44d1c7b9908bc82ffa80d52004c966c06a63cc45",
    "signature": "0xc36223d36eafde7e59ff68e187549f4db7255df18442b63d7299dcd048ee46690a1cf7fb126e06b35d86d46c81c94fa0ecc3221a0d7a5be1a53a552c163bd6b31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}