{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72064",
    "entityType": "User",
    "nonce": "0x457960b03e9ddede3b4fa839ddda138c381be07a737f0635f38848c17fac680f",
    "signature": "0xa02edd4916aec8a57a6be651d61992e9dc643247c170a1cf3b0de794b3078f0a143648af2ae5302433b77b4482351c72bfd20b0a13847a2edab4ff93b6f1a3751b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}